Heater lighter



F. A. GAUGER ET AL 1,918,805

HEATER LIGHTER Jug 18, 1933.

Original Filed June 15. 1924 F .1 zz.

' ATTORNEY.

Patented July 18, 1933 UNITED STATES PATEN'F OFFICE I FRANK A, GAUGER AND ROY W. JOHNSON, OF MILWAUKEE, WISCONSIN, ASSIGNORS, BY MESNE ASSIGNMENTS, TO MINNEAPOLIS-HONEYWELL REGULATOR COMPANY, OF MINNEAPOLIS, MINNESOTA, A CORPORATION OF DELAWARE HEATER LIGHT Original application filed June 13, 1924, Serial No. 719,797. Divided and this application filed July 18,

1927. Serial No. 206,724.

Pat. 'No. 1,652,524, Dec. 13, 1927. The sub ject matter of the present application relates particularly to the main features of the control, whereby the burner valve may be opened and held opened for a predetermined time and then automatically closed. Another feature to which the resent application relates is the provision o a device of this character wherein a plurality of controls for the burner valve is provided which are located atdifterent distant points of control and are selectively operable.

Still another important feature of the present application is the improvements in the time element or clock mechanism forming a part of the control.

With the above and other objects in View which will appear as the description proceeds, our invention resides in the novel construction, combination and arrangement of parts substantially ashereinafter described and more particularly defined by the appended claims, it being understood that such changes in the precise embodiment of the nereindisclosed invention may be made as come within the scope of the claims In the accompanying drawing:

Figure 1 is a view in front elevation of a time controlled mechanism embodying the present invention;

Figure 2 is a view in section taken on line 2-2 of Figure 1, with parts shown in elevationfor the sake of simplicity in illustration';

Figure 3 is a view showing thetime controlled mechanism in rear elevation, a part of the back plate beingbroken away for the sake of illustration and Figure 4 is a view in section taken on line 44 of Figure 2 with parts shown in elevation for the sake of illustration.

Referring to the drawing, it will be seen that the time controlled mechanism embodying the present invention is designated generally at T' and comprises a casing or housing 71 having lateral securing lugs or ears 72 for facilitating its mounting. A plate or base member 73 closes the underside of the casing and journaled in the lower portion of the casing in bearings 74 and 75 carried by the casing 71 and plate 73, respectively, is a shaft 76 on which is secured a disc 77 carrying an eccentric pin 78. The shaft 76pmjects through the casing 71 and is provided with an indicator or pointer 79 and an actuating handle 80, the pointer 79 registering with suitable indications On and CE delineated on the outer face of the casing to indicate the position of the valve V.

One end of cable 68 is secured to a grooved member 81 rotatably mounted on pin 78 and when the indicator 79 is in its Ofi position, pin 78 is in its lower-most position. It is to be understood that the cable 68 is connected to the instrumentality to be controlled, as, for example, to a valve controlling the supply of fuel to the burner of a water heater. The On position, as illustrated by dotted lines in Figure 5, is to one side of an imaginary line drawn perpendicularly through the axis of shaft 76 so that upon release of the disc 77, as hereinafter described, the control ceases to exercise its function and permits the instrumentality which it regulates to return to its normal condition. For instance, when controlling the valve of a burner the valve is permitted to return to its closed position as more fully set forth in our application Serial No. 719,797, now Patent No. 1,652,524.

Secured to the plate 73 is a clock movement comprising a main spring arbor 82 similar in construction to the spring arbor illustrated in Letters Patent Number 1,150,514, granted Joseph lV. Gibney, August 17 1915' and Letters Patent Number 1,239,955, granted loss M G. Phillips, September 11, 1917. A. main wheel 83 is actuated by the main spring 84 mounted on the arbor and is connected Pivoted to one of the pillars 87 connecting the front and rear movement plates 88 and 89, respectively, and the base plate 73, is a dog or detent 90 of substantially triangular shape having a corner or shoulder 91 adapted to engage behind a stop 92 in the form of a lip or lug struck from the disc7 7 to secure the disk in its On position illustrated in.

Figure 5. The dog or detent 9O constitutes a trigger member and the disc 77 and its lip or stop 92 constitutes a cocking member.

The other end of the detent 90 has one end of a link member 93 connected therewith by a pivot 94, the other end of which member hav- 7 ing a longitudinal, elongated slot 95 therein pivotally receiving a crank pin 96 carried on the outer free end of a crank member 97 secured to the main spring arbor 82. The detent has its free end normally urged downwardly to position its shoulder 91 in the path of the stop92 by a spring 98, the medial portion of which is coiled around the pillar 87 to which the detent is pivoted, as at 99, one end engaging an adjacent pillar 87 and the other end passing through an opening 100 in the pivot pin 94.

The main spring arbor 82 passes outwardly through the casing 71 and carries an indicator or pointer 101 and a winding handle 102, a dial 103 being formed on the outer face of the casing and cooperating with the pointer 101'. Stops 10 1 and 105 are carried by the casing 71 to engage the pointer 101 and limit the winding and unwinding of the main spring, stop 104: restricting the unwinding movement. The .dial is suitably graduated, starting from zero adjacent'stop 104 and in the drawing the dial is divided into divisions of five minutes each.

To set the device so that the instrumentality to be controlled, as, for instance, the burner of a water heater, will continue to operate for a predetermined period of time, as for example thirty minutes, the operator turns the handle 102 of either of the devices T in a counterclockwise direction to aline the pointer 101 thereof with the designation 30 on the dial 103. This permits spring 98 to drop the shoulder 91 of detent 90 in the path of the stop 92, when handle is rotated in a counter-clockwise direction to align its indicator 79 with the indication On, the stop 92 being confined between a projection 107 struck from the rear movement plate 73 and sttipl the shoulder 91 of the detent. The cable 68 is pulled upwardly by the rotation of the dice 77 and this movement of the cable is eflective to exercise appropriate control over the valve or other instrumentality controlled As the spring- 84c of the timing device T unwinds, detent 90 is gradually raised against the action of spring 98 by the crank member 97 carried by the main spring arbor, as hereinbefore described. By the time the indicator 101 reaches the Zero designation on the dial 103, the detent shoulder 91 will have cleared the path of stop 92 and the control of the timing mechanism over the instrumentality regulated will be relinquished in that the disc 77 will be free to move under the influence of the .pull exerted on the cable 68. As pointed out, the cable is connected to a valve or other similar instrumentality which is biased to one position. In the instance of a valve, springs or weights are used to tend to close the valve and hence as soon as the disc 77 is freed the valve closes. At any time before the expiration of the selected time interval the mechanism may be set back to zero bymanually turning the handle 102 in a clockwise direction, as viewed in Figure 1, until the pointer 101 engages the 104C. orderto assure the starting of the clock mechanism each operation of the device, a fiat spring 108 is secured to a lug 109 struck from the disc 77 with its outer free end adapted to wipe a gear 110 on the shaft 111 of the escapement wheel as the disc is rotated to insure an initial kick to the escapement wheel and eliminate any possibility of the clock movement not starting.

The invention claimed is:

1. Time controlled mechanism comprising a casing, a disc supported for rotation in said casing and having means adapted for connection with the instrumentality to be controlled, means exterior of said casing for rotatingsaid disc, a setable clock movement in said casing, a crank pin driven from the clock movement, a link having a slot in which said pin is operatively fitted, a trigger memberpivotally connected to and controlled by said link, spring means for biasing said trigger member to operative position, and a projection on said disc engageable with said trigger member upon setting of said clock movement and appropriate adjustment of said disc, said clock movement automatically disengaging said trigger member from said projection after-the lapse of the selected time interval.

2. Time controlled mechanism of the character described comprising a setable clock movement, a crank pin actuated from said clock movement, a link having a slot in which said pin is operatively fitted, a substantially triangular trigger member pivotally connected to the'hnk and mounted for pivotal movement about a fixed axis, a manually operable disc having means adapted for connection with the instrumentality to be controlled, a projection on said disc engageable with the trigger, member, means for biasing the trigger member to a osition wherein it engages and holds the pro ection and a fixed abutment opposed to the trigger member and coacting therewith to confine the projection of the disc therebetween.

3. Time controlled mechanism of the character described comprisin a manually rotatable control member a apted to be connected to the instrumentality to be controlled and provided with a projection, a manually setable clock movement, a crank pin driven from said clock movement, a trigger member mounted for pivotal movement about a fixed axis and biased to a position wherein it engages the projection of said control member when said control member is set, and a link pivoted to said trigger member and having a slot in which said crank pin is operatively fitted whereby said clock movement automatically disengages said trigger member from'sald projection after the expiration of the selected time interval.

4. Time controlled mechanism of the character described comprising a disc supported for rotation, manually operable means for rotating said disc, said disc having a projection, a setable clock movement, a crank pin driven from said clock movement, a tri ger member pivoted for movement about a xed axis and biased to a position wherein it engages the projection of the disc to hold the isc in set position, and a link connecting the crank pin and the trigger member whereby said clock movement automatically disengages said trigger member from said disc after the expiration of the selected time interval.

FRANK A. GAUGER. ROY W. JOHNSON. 

